certain; some kind of; some sort of; of sorts
unbelievable; incredible; implausible
to confide; to reveal; to disclose; to lay bare; to speak frankly; to open (one's heart)
a matter of course; what is to be expected; par for the course
putting in other words; rephrasing; rewording; paraphrase
important condition; basic premise; something that should be obvious to all; something that should not have to be argued; major premise (in a syllogism)
introduction; bringing in; installation; introduction (to a story, lecture, etc.); introductory part
foresight; foreknowledge; intimation; premonition; prediction
Urashima Tarō; fairy-tale fisherman who, after visiting the underwater Palace of the Dragon King, returns centuries later
outline; summary; argument
above ground; on the ground; earth's surface; this world; this earth
Urashima's casket (in the story of Urashima Tarō); Pandora's box; one's closely guarded treasure
Einstein; Einstein, Albert (1879-1955; German-born theoretical physicist)
genius; prodigy; natural gift
to flash (e.g. lightning); to flicker; to flutter (e.g. flag); to wave; to flash into one's mind (e.g. an idea); to come to one suddenly
special theory of relativity
high-speed; rapid; express; highway; freeway; expressway
precise; exact; detailed; accurate; minute; close
(hard) candy; toffee; rice-sugar; sugar made from the starch of rice, potatoes, etc.; amber; yellowish-brown
candy-coated fruit (usu. a plum) on a stick
airplane; aeroplane; plane; aircraft
thereupon; shortly thereafter
nanosecond; billionth of a second; ns
one Nth part (e.g. one fifth, one tenth); one out of N
measurement error; calculation error; discrepancy; deviation; difference
delay; lag; falling behind; falling behind in; lagging behind in
one revolution; one rotation
hyperfine; ultrafine; nanoscale; nano-; micro-
transition (esp. in scientific, computing, etc. contexts); succession